1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/** @file
SM3 Digest Wrapper Implementations over openssl.
Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "InternalCryptLib.h"
#include "crypto/sm3.h"
/**
Retrieves the size, in bytes, of the context buffer required for SM3 hash operations.
@return The size, in bytes, of the context buffer required for SM3 hash operations.
**/
UINTN
EFIAPI
Sm3GetContextSize (
VOID
)
{
//
// Retrieves Openssl SM3 Context Size
//
return (UINTN)(sizeof (SM3_CTX));
}
/**
Initializes user-supplied memory pointed by Sm3Context as SM3 hash context for
subsequent use.
If Sm3Context is NULL, then return FALSE.
@param[out] Sm3Context Pointer to SM3 context being initialized.
@retval TRUE SM3 context initialization succeeded.
@retval FALSE SM3 context initialization failed.
**/
BOOLEAN
EFIAPI
Sm3Init (
OUT VOID *Sm3Context
)
{
//
// Check input parameters.
//
if (Sm3Context == NULL) {
return FALSE;
}
//
// Openssl SM3 Context Initialization
//
sm3_init ((SM3_CTX *)Sm3Context);
return TRUE;
}
/**
Makes a copy of an existing SM3 context.
If Sm3Context is NULL, then return FALSE.
If NewSm3Context is NULL, then return FALSE.
If this interface is not supported, then return FALSE.
@param[in] Sm3Context Pointer to SM3 context being copied.
@param[out] NewSm3Context Pointer to new SM3 context.
@retval TRUE SM3 context copy succeeded.
@retval FALSE SM3 context copy failed.
@retval FALSE This interface is not supported.
**/
BOOLEAN
EFIAPI
Sm3Duplicate (
IN CONST VOID *Sm3Context,
OUT VOID *NewSm3Context
)
{
//
// Check input parameters.
//
if ((Sm3Context == NULL) || (NewSm3Context == NULL)) {
return FALSE;
}
CopyMem (NewSm3Context, Sm3Context, sizeof (SM3_CTX));
return TRUE;
}
/**
Digests the input data and updates SM3 context.
This function performs SM3 digest on a data buffer of the specified size.
It can be called multiple times to compute the digest of long or discontinuous data streams.
SM3 context should be already correctly initialized by Sm3Init(), and should not be finalized
by Sm3Final(). Behavior with invalid context is undefined.
If Sm3Context is NULL, then return FALSE.
@param[in, out] Sm3Context Pointer to the SM3 context.
@param[in] Data Pointer to the buffer containing the data to be hashed.
@param[in] DataSize Size of Data buffer in bytes.
@retval TRUE SM3 data digest succeeded.
@retval FALSE SM3 data digest failed.
**/
BOOLEAN
EFIAPI
Sm3Update (
IN OUT VOID *Sm3Context,
IN CONST VOID *Data,
IN UINTN DataSize
)
{
//
// Check input parameters.
//
if (Sm3Context == NULL) {
return FALSE;
}
//
// Check invalid parameters, in case that only DataLength was checked in Openssl
//
if ((Data == NULL) && (DataSize != 0)) {
return FALSE;
}
//
// Openssl SM3 Hash Update
//
sm3_update ((SM3_CTX *)Sm3Context, Data, DataSize);
return TRUE;
}
/**
Completes computation of the SM3 digest value.
This function completes SM3 hash computation and retrieves the digest value into
the specified memory. After this function has been called, the SM3 context cannot
be used again.
SM3 context should be already correctly initialized by Sm3Init(), and should not be
finalized by Sm3Final(). Behavior with invalid SM3 context is undefined.
If Sm3Context is NULL, then return FALSE.
If HashValue is NULL, then return FALSE.
@param[in, out] Sm3Context Pointer to the SM3 context.
@param[out] HashValue Pointer to a buffer that receives the SM3 digest
value (32 bytes).
@retval TRUE SM3 digest computation succeeded.
@retval FALSE SM3 digest computation failed.
**/
BOOLEAN
EFIAPI
Sm3Final (
IN OUT VOID *Sm3Context,
OUT UINT8 *HashValue
)
{
//
// Check input parameters.
//
if ((Sm3Context == NULL) || (HashValue == NULL)) {
return FALSE;
}
//
// Openssl SM3 Hash Finalization
//
sm3_final (HashValue, (SM3_CTX *)Sm3Context);
return TRUE;
}
/**
Computes the SM3 message digest of a input data buffer.
This function performs the SM3 message digest of a given data buffer, and places
the digest value into the specified memory.
If this interface is not supported, then return FALSE.
@param[in] Data Pointer to the buffer containing the data to be hashed.
@param[in] DataSize Size of Data buffer in bytes.
@param[out] HashValue Pointer to a buffer that receives the SM3 digest
value (32 bytes).
@retval TRUE SM3 digest computation succeeded.
@retval FALSE SM3 digest computation failed.
@retval FALSE This interface is not supported.
**/
BOOLEAN
EFIAPI
Sm3HashAll (
IN CONST VOID *Data,
IN UINTN DataSize,
OUT UINT8 *HashValue
)
{
SM3_CTX Ctx;
//
// Check input parameters.
//
if (HashValue == NULL) {
return FALSE;
}
if ((Data == NULL) && (DataSize != 0)) {
return FALSE;
}
//
// SM3 Hash Computation.
//
sm3_init (&Ctx);
sm3_update (&Ctx, Data, DataSize);
sm3_final (HashValue, &Ctx);
return TRUE;
}
|
